Rajesh, Mandamparambil; Sheeba, Mavila; Geetha, Karinjamanna; Vallabhan, Chakkalakkal P G; Radhakrishnan, Padmanabhan; Nampoori, Vadakkedathu P N(Optical Society of America, January , 2007)
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Abstract:
The fabrication and characterization of a Rhodamine 6G-doped polymer optical fiber amplifier have been carried out. Two different schemes were employed to characterize the optical fiber: the stripe illumination technique to study the fiber as a gain medium and another technique to study its performance as an amplifier. We observed a spectral narrowing from 42 to 7 nm when the pump energy was increased to 6 mJ in the stripe illumination geometry. A gain of 18 dB was obtained in the amplifier configuration. The effects of pump power and dye concentration on the performance of the fiber as an amplifier were also studied.